Moreutils – Unix tools that nobody thought to write (2012)(joeyh.name)

  sed s/foo/bar/ file > file 

  sponge reads standard input and writes it out to the specified file. Unlike a shell redirect, sponge soaks up all its input before opening the output file. This allows constricting pipelines that read from and write to the same file.

  sed s/foo/bar/ file | sponge file 

    jot -- print sequential or random data 
    rs  -- reshape a data array
    vis -- display non-printable characters in a visual format

    apply -- apply a command to a set of arguments
    mc -- multicolumn print

    tw -- file tree walk

    align -- align text columns
    crop -- crop lines to a width
    dabl -- delete adjacent blank lines
    dtb -- delete trailing blanks
    emboxxen / deboxxen -- convert to/from box drawing characters
    eol -- convert line endings
    field -- simple line field extraction
    freeze / thaw -- cross-shell synchronization
    mergl -- merge lines into previous lines' blanks
    pad -- pad lines to a width
    put / take -- cross-shell pipe
    uni -- unicode character properties and search

  ls -1p | grep -v '/$'

     function lsd {
         ls -1p $* | grep '/$'
     }

  #!/usr/bin/env rc
  
  if (~ `{find -type f | 9 grep $1 | wc -l} 1)
   plumb `{find -type f | 9 grep $1}
  if not
   find -type f | 9 grep $1

    #! /bin/bash
     d=$(find /  -name "$1" 2>/dev/null | head -1)
     echo Jumping to $d, Control-D to return 
     sleep 1
     cd $d
     bash